package com.net.utils;


import java.io.UnsupportedEncodingException;

/**
 *
 * Date: 13-11-5
 * Time: 18:10
 */
public class MacUtils {

    private static final int[][] s1 = {
            {14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7},
            {0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8},
            {4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0},
            {15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}};
    private static final int[][] s2 = {
            {15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10},
            {3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5},
            {0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15},
            {13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}};
    private static final int[][] s3 = {
            {10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8},
            {13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1},
            {13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7},
            {1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}};
    private static final int[][] s4 = {
            {7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15},
            {13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9},// erorr
            {10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4},
            {3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}};
    private static final int[][] s5 = {
            {2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9},
            {14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6},
            {4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14},
            {11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}};
    private static final int[][] s6 = {
            {12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11},
            {10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8},
            {9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6},
            {4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}};
    private static final int[][] s7 = {
            {4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1},
            {13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6},
            {1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2},
            {6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}};
    private static final int[][] s8 = {
            {13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7},
            {1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2},
            {7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8},
            {2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}};
    private static final int[] ip = {58, 50, 42, 34, 26, 18, 10, 2, 60, 52,
            44, 36, 28, 20, 12, 4, 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48,
            40, 32, 24, 16, 8, 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35,
            27, 19, 11, 3, 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31,
            23, 15, 7};
    private static final int[] _ip = {40, 8, 48, 16, 56, 24, 64, 32, 39, 7,
            47, 15, 55, 23, 63, 31, 38, 6, 46, 14, 54, 22, 62, 30, 37, 5, 45,
            13, 53, 21, 61, 29, 36, 4, 44, 12, 52, 20, 60, 28, 35, 3, 43, 11,
            51, 19, 59, 27, 34, 2, 42, 10, 50, 18, 58, 26, 33, 1, 41, 9, 49,
            17, 57, 25};
    // 每次密钥循环左移位数
    private static final int[] LS = {1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2,
            2, 1};
    private static int[][] subKey = new int[16][48];
    private static int HEX = 0;
    private static int ASC = 1;

    /**
     * 将十六进制A--F转换成对应数
     *
     * @param ch
     * @return
     * @throws Exception
     */
    public static int getIntByChar(char ch) throws Exception {
        char t = Character.toUpperCase(ch);
        int i = 0;
        switch (t) {
            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
                i = Integer.parseInt(Character.toString(t));
                break;
            case 'A':
                i = 10;
                break;
            case 'B':
                i = 11;
                break;
            case 'C':
                i = 12;
                break;
            case 'D':
                i = 13;
                break;
            case 'E':
                i = 14;
                break;
            case 'F':
                i = 15;
                break;
            default:
                throw new Exception("getIntByChar was wrong");
        }
        return i;
    }

    /**
     * 将字符串转换成二进制数组
     *
     * @param source :
     *               16字节
     * @return
     */
    public static int[] string2Binary(String source) {
        int len = source.length();
        int[] dest = new int[len * 4];
        char[] arr = source.toCharArray();
        for (int i = 0; i < len; i++) {
            int t = 0;
            try {
                t = getIntByChar(arr[i]);
                // System.out.println(arr[i]);
            } catch (Exception e) {
                e.printStackTrace();
            }
            String[] str = Integer.toBinaryString(t).split("");
            int k = i * 4 + 3;
            for (int j = str.length - 1; j > 0; j--) {
                dest[k] = Integer.parseInt(str[j]);
                k--;
            }
        }
        return dest;
    }

    /**
     * 返回x的y次方
     *
     * @param x
     * @param y
     * @return
     */
    public static int getXY(int x, int y) {
        int temp = x;
        if (y == 0)
            x = 1;
        for (int i = 2; i <= y; i++) {
            x *= temp;
        }
        return x;
    }

    /**
     * s位长度的二进制字符串
     *
     * @param s
     * @return
     */
    public static String binary2Hex(String s) {
        int len = s.length();
        int result = 0;
        int k = 0;
        if (len > 4)
            return null;
        for (int i = len; i > 0; i--) {
            result += Integer.parseInt(s.substring(i - 1, i)) * getXY(2, k);
            k++;
        }
        switch (result) {
            case 0:
            case 1:
            case 2:
            case 3:
            case 4:
            case 5:
            case 6:
            case 7:
            case 8:
            case 9:
                return "" + result;
            case 10:
                return "A";
            case 11:
                return "B";
            case 12:
                return "C";
            case 13:
                return "D";
            case 14:
                return "E";
            case 15:
                return "F";
            default:
                return null;
        }
    }

    /**
     * 将int转换成Hex
     *
     * @param i
     * @return
     * @throws Exception
     */
    public static String int2Hex(int i) {
        switch (i) {
            case 0:
            case 1:
            case 2:
            case 3:
            case 4:
            case 5:
            case 6:
            case 7:
            case 8:
            case 9:
                return "" + i;
            case 10:
                return "A";
            case 11:
                return "B";
            case 12:
                return "C";
            case 13:
                return "D";
            case 14:
                return "E";
            case 15:
                return "F";
            default:
                return null;
        }
    }

    /**
     * 将二进制字符串转换成十六进制字符
     *
     * @param s
     * @return
     */
    public static String binary2ASC(String s) {
        String str = "";
        int ii = 0;
        int len = s.length();
        // 不够4bit左补0
        if (len % 4 != 0) {
            while (ii < 4 - len % 4) {
                s = "0" + s;
            }
        }
        for (int i = 0; i < len / 4; i++) {
            str += binary2Hex(s.substring(i * 4, i * 4 + 4));
        }
        return str;
    }

    /**
     * IP初始置换
     *
     * @param source
     * @return
     */
    public static int[] changeIP(int[] source) {
        int[] dest = new int[64];
        for (int i = 0; i < 64; i++) {
            dest[i] = source[ip[i] - 1];
        }
        return dest;
    }

    /**
     * IP-1逆置
     *
     * @param source
     * @return
     */
    public static int[] changeInverseIP(int[] source) {
        int[] dest = new int[64];
        for (int i = 0; i < 64; i++) {
            dest[i] = source[_ip[i] - 1];
        }
        return dest;
    }

    /**
     * 2bit扩展8bit
     *
     * @param source
     * @return
     */
    public static int[] expend(int[] source) {
        int[] ret = new int[48];
        int[] temp = {32, 1, 2, 3, 4, 5, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12,
                13, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 20, 21, 22,
                23, 24, 25, 24, 25, 26, 27, 28, 29, 28, 29, 30, 31, 32, 1};
        for (int i = 0; i < 48; i++) {
            ret[i] = source[temp[i] - 1];
        }
        return ret;
    }

    /**
     * 8bit压缩2bit
     *
     * @param source(48bit)
     * @return R(32bit) B=E(R)⊕K，将48 位的B 分成8 个分组，B=B1B2B3B4B5B6B7B8
     */
    public static int[] press(int[] source) {
        int[] ret = new int[32];
        int[][] temp = new int[8][6];
        int[][][] s = {s1, s2, s3, s4, s5, s6, s7, s8};
        StringBuffer str = new StringBuffer();
        for (int i = 0; i < 8; i++) {
            for (int j = 0; j < 6; j++) {
                temp[i][j] = source[i * 6 + j];
            }
        }
        for (int i = 0; i < 8; i++) {
            // (16)
            int x = temp[i][0] * 2 + temp[i][5];
            // (2345)
            int y = temp[i][1] * 8 + temp[i][2] * 4 + temp[i][3] * 2
                    + temp[i][4];
            int val = s[i][x][y];
            String ch = int2Hex(val);
            // System.out.println("x=" + x + ",y=" + y + "-->" + ch);
            // String ch = Integer.toBinaryString(val);
            str.append(ch);
        }
        // System.out.println(str.toString());
        ret = string2Binary(str.toString());
        // printArr(ret);
        // 置换P
        ret = dataP(ret);
        return ret;
    }

    /**
     * 置换P(32bit)
     *
     * @param source
     * @return
     */
    public static int[] dataP(int[] source) {
        int[] dest = new int[32];
        int[] temp = {16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31,
                10, 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25};
        int len = source.length;
        for (int i = 0; i < len; i++) {
            dest[i] = source[temp[i] - 1];
        }
        return dest;
    }

    /**
     * @param R(2bit)
     * @param K(48bit的轮子密
     * @return 32bit
     */
    public static int[] f(int[] R, int[] K) {
        int[] dest = new int[32];
        int[] temp = new int[48];
        // 先将输入32bit扩展8bit
        int[] expendR = expend(R);// 48bit
        // 与轮子密钥进行异或运
        temp = diffOr(expendR, K);
        // 压缩2bit
        dest = press(temp);
        // System.out.println("need press requestData----->");
        // printArr(temp);
        return dest;
    }

    /**
     * 两个等长的数组做异或
     *
     * @param source1
     * @param source2
     * @return
     */
    public static int[] diffOr(int[] source1, int[] source2) {
        int len = source1.length;
        int[] dest = new int[len];
        for (int i = 0; i < len; i++) {
            dest[i] = source1[i] ^ source2[i];
        }
        return dest;
    }

    /**
     * DES加密--->对称密钥
     * <p/>
     * D = Ln(32bit)+Rn(32bit)
     * <p/>
     * 经过16轮置
     *
     * @param D(16byte)明文
     * @param K(16byte)轮子密钥
     * @return (16byte)密文
     */
    public static String encryption(String D, String K) {
        String str = "";
        int[] temp = new int[64];
        int[] data = string2Binary(D);
        // printArr(requestData);
        // 第一步初始置
        data = changeIP(data);
        // printArr(requestData);
        int[][] left = new int[17][32];
        int[][] right = new int[17][32];
        for (int j = 0; j < 32; j++) {
            left[0][j] = data[j];
            right[0][j] = data[j + 32];
        }
        // printArr(left[0]);
        // printArr(right[0]);
        setKey(K);// sub key ok
        for (int i = 1; i < 17; i++) {
            // 获取(48bit)的轮子密
            int[] key = subKey[i - 1];
            // L1 = R0
            left[i] = right[i - 1];
            // R1 = L0 ^ f(R0,K1)
            int[] fTemp = f(right[i - 1], key);// 32bit
            right[i] = diffOr(left[i - 1], fTemp);
        }
        // 组合的时候，左右调换**************************************************
        for (int i = 0; i < 32; i++) {
            temp[i] = right[16][i];
            temp[32 + i] = left[16][i];
        }
        temp = changeInverseIP(temp);
        str = binary2ASC(intArr2Str(temp));
        return str;
    }

    /**
     * DES解密--->对称密钥
     * <p/>
     * 解密算法与加密算法基本相同，不同之处仅在于轮子密钥的使用顺序逆序，即解密的第1
     * <p/>
     * 轮子密钥为加密的6 轮子密钥，解密的 轮子密钥为加密的5 轮子密钥，…，
     * <p/>
     * 解密的第16 轮子密钥为加密的 轮子密钥
     *
     * @param source 密文
     * @param key    密钥
     * @return
     */
    public static String discryption(String source, String key) {
        String str = "";
        int[] data = string2Binary(source);// 64bit
        // 第一步初始置
        data = changeIP(data);
        int[] left = new int[32];
        int[] right = new int[32];
        int[] tmp = new int[32];
        for (int j = 0; j < 32; j++) {
            left[j] = data[j];
            right[j] = data[j + 32];
        }
        setKey(key);// sub key ok
        for (int i = 16; i > 0; i--) {
            // 获取(48bit)的轮子密
            /** *******不同之处********* */
            int[] sKey = subKey[i - 1];
            tmp = left;
            // R1 = L0
            left = right;
            // L1 = R0 ^ f(L0,K1)
            int[] fTemp = f(right, sKey);// 32bit
            right = diffOr(tmp, fTemp);
        }
        // 组合的时候，左右调换**************************************************
        for (int i = 0; i < 32; i++) {
            data[i] = right[i];
            data[32 + i] = left[i];
        }
        data = changeInverseIP(data);
        for (int i = 0; i < data.length; i++) {
            str += data[i];
        }
        str = binary2ASC(str);
        return str;
    }

    /**
     * 单长密钥DES(16byte)
     *
     * @param source
     * @param key
     * @param type   0:encrypt 1:discrypt
     * @return
     */
    public static String DES_1(String source, String key, int type) {
        if (source.length() != 16 || key.length() != 16)
            return null;
        if (type == 0) {
            return encryption(source, key);
        }
        if (type == 1) {
            return discryption(source, key);
        }
        return null;
    }
    /** **********************************48bit的轮子密钥的生成********************************************************* */
    /**
     * 4bit的密钥转换成56bit
     *
     * @param source
     * @return
     */

    public static int[] keyPC_1(int[] source) {
        int[] dest = new int[56];
        int[] temp = {57, 49, 41, 33, 25, 17, 9,
                1, 58, 50, 42, 34, 26, 18,
                10, 2, 59, 51, 43, 35, 27,
                19, 11, 3, 60, 52, 44, 36,
                63, 55, 47, 39, 31, 23, 15,
                7, 62, 54, 46, 38, 30, 22,
                14, 6, 61, 53, 45, 37, 29,
                21, 13, 5, 28, 20, 12, 4};
        for (int i = 0; i < 56; i++) {
            dest[i] = source[temp[i] - 1];
        }
        return dest;
    }

    /**
     * 将密钥循环左移i
     *
     * @param source 二进制密钥数
     * @param i      循环左移位数
     * @return
     */
    public static int[] keyLeftMove(int[] source, int i) {
        int temp = 0;
        int len = source.length;
        int ls = LS[i];
        // System.out.println("len" + len + ",LS[" + i + "]=" + ls);
        for (int k = 0; k < ls; k++) {
            temp = source[0];
            for (int j = 0; j < len - 1; j++) {
                source[j] = source[j + 1];
            }
            source[len - 1] = temp;
        }
        return source;
    }

    /**
     * 6bit的密钥转换成48bit
     *
     * @param source
     * @return
     */
    public static int[] keyPC_2(int[] source) {
        int[] dest = new int[48];
        int[] temp = {14, 17, 11, 24, 1, 5,
                3, 28, 15, 6, 21, 10,
                23, 19, 12, 4, 26, 8,
                16, 7, 27, 20, 13, 2,
                41, 52, 31, 37, 47, 55,
                30, 40, 51, 45, 33, 48,
                44, 49, 39, 56, 34, 53,
                46, 42, 50, 36, 29, 32};
        for (int i = 0; i < 48; i++) {
            dest[i] = source[temp[i] - 1];
        }
        return dest;
    }

    /**
     * 获取轮子密钥(48bit)
     *
     * @param source
     * @return
     */
    public static void setKey(String source) {
        if (subKey.length > 0)
            subKey = new int[16][48];
        // 装换4bit
        int[] temp = string2Binary(source);
        // 6bit均分成两部分
        int[] left = new int[28];
        int[] right = new int[28];
        // 经过PC-14bit转换6bit
        int[] temp1 = new int[56];
        temp1 = keyPC_1(temp);
        // printArr(temp1);
        // 将经过转换的temp1均分成两部分
        for (int i = 0; i < 28; i++) {
            left[i] = temp1[i];
            right[i] = temp1[i + 28];
        }
        // 经过16次循环左移，然后PC-2置换
        for (int i = 0; i < 16; i++) {
            left = keyLeftMove(left, LS[i]);
            right = keyLeftMove(right, LS[i]);
            for (int j = 0; j < 28; j++) {
                temp1[j] = left[j];
                temp1[j + 28] = right[j];
            }
            // printArr(temp1);
            subKey[i] = keyPC_2(temp1);
        }
    }

    public static void printArr(int[] source) {
        int len = source.length;
        for (int i = 0; i < len; i++) {
            System.out.print(source[i]);
        }
        System.out.println();
    }

    /**
     * 将ASC字符串转16进制字符
     *
     * @param asc
     * @return
     */
    public static String ASC_2_HEX(String asc) {
        StringBuffer hex = new StringBuffer();
        try {
            byte[] bs = asc.toUpperCase().getBytes("UTF-8");
            for (byte b : bs) {
                hex.append(Integer.toHexString(new Byte(b).intValue()));
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return hex.toString();
    }

    /**
     * 16进制的字符串转换成ASC的字符串
     * <p/>
     * 16进制的字符串压缩成BCD(30313233343536373839414243444546)-->(0123456789ABCDEF)
     *
     * @param hex
     * @return
     */
    public static String HEX_2_ASC(String hex) {
        String asc = null;
        int len = hex.length();
        byte[] bs = new byte[len / 2];
        for (int i = 0; i < len / 2; i++) {
            bs[i] = Byte.parseByte(hex.substring(i * 2, i * 2 + 2), 16);
        }
        try {
            asc = new String(bs, "UTF-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return asc;
    }

    /**
     * 计算MAC(hex)
     * ANSI-X9.9-MAC(16的整数不补)
     * PBOC-DES-MAC(16的整数补8000000000000000)
     * 使用单倍长密钥DES算法
     *
     * @param key    密钥(16byte)
     * @param vector 初始向量0000000000000000
     * @param data   数据
     * @return mac
     */
    public static String PBOC_DES_MAC(String key, String vector, String data, int type) {
        if (key.length() != 16) {
            return null;
        }
        if (type == ASC) {
            data = ASC_2_HEX(data);
        }
        int len = data.length();
        int arrLen = len / 16 + 1;
        String[] D = new String[arrLen];
        if (vector == null)
            vector = "0000000000000000";
        if (len % 16 == 0) {
            data += "8000000000000000";
        } else {
            data += "80";
            for (int i = 0; i < 15 - len % 16; i++) {
                data += "00";
            }
        }
        for (int i = 0; i < arrLen; i++) {
            D[i] = data.substring(i * 16, i * 16 + 16);
            System.out.println("D[" + i + "]=" + D[i]);
        }
        // D0 Xor Vector
        String I = xOr(D[0], vector);
        String O = null;
        for (int i = 1; i < arrLen; i++) {
//            System.out.println(i + "**************");
//            System.out.println("I=" + I);
            O = DES_1(I, key, 0);
//            System.out.println("O=" + O);
            I = xOr(D[i], O);
//            System.out.println("I=" + I);
        }
        I = DES_1(I, key, 0);
        return I;
    }

    /**
     * 计算MAC(hex)
     * ANSI-X9.9-MAC(16的整数不补)
     * PBOC-DES-MAC(16的整数补8000000000000000)
     * 使用单倍长密钥DES算法
     *
     * @param key    密钥(16byte)
     * @param vector 初始向量0000000000000000
     * @param data   数据
     * @return mac
     */
    public static String ANSI_X9_9_MAC(String key, String vector, String data, int type) {
        if (key.length() != 16) {
            return null;
        }
        if (type == ASC) {
            data = ASC_2_HEX(data);
        }
        int len = data.length();
        int arrLen = len / 16 + 1;
        String[] D = new String[arrLen];
        if (vector == null)
            vector = "0000000000000000";
        if (len % 16 == 0) {
            data += "0000000000000000";
        } else {
            data += "00";
            for (int i = 0; i < 15 - len % 16; i++) {
                data += "00";
            }
        }
        for (int i = 0; i < arrLen; i++) {
            D[i] = data.substring(i * 16, i * 16 + 16);
//            System.out.println("D[" + i + "]=" + D[i]);
        }
        // D0 Xor Vector
        String I = xOr(D[0], vector);
        String O = null;
        for (int i = 1; i < arrLen; i++) {
//            System.out.println(i + "**************");
//            System.out.println("I=" + I);
            O = DES_1(I, key, 0);
//            System.out.println("O=" + O);
            I = xOr(D[i], O);
//            System.out.println("I=" + I);
        }
        I = DES_1(I, key, 0);
        return I;
    }

    /**
     * 将s1和s2做异或，然后返回
     *
     * @param s1
     * @param s2
     * @return
     */
    public static String xOr(String s1, String s2) {
        int[] iArr = diffOr(string2Binary(s1), string2Binary(s2));
        return binary2ASC(intArr2Str(iArr));
    }

    /**
     * 将int类型数组拼接成字符串
     *
     * @param arr
     * @return
     */
    public static String intArr2Str(int[] arr) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < arr.length; i++) {
            sb.append(arr[i]);
        }
        return sb.toString();
    }

    /**
     * 将data分散
     *
     * @param data
     * @param key
     * @param type
     * @return
     */
    public static String divData(String data, String key, int type) {
        String left = null;
        String right = null;
        if (type == HEX) {
            left = key.substring(0, 16);
            right = key.substring(16, 32);
        }
        if (type == ASC) {
            left = ASC_2_HEX(key.substring(0, 8));
            right = ASC_2_HEX(key.substring(8, 16));
        }
        // 加密
        data = DES_1(data, left, 0);
        // 解密
        data = DES_1(data, right, 1);
        // 加密
        data = DES_1(data, left, 0);
        return data;
    }

    /**
     * 取反(10001)--->(01110)
     *
     * @param source
     * @return
     */
    public static String reverse(String source) {
        int[] data = string2Binary(source);
        int j = 0;
        for (int i : data) {
            data[j++] = 1 - i;
        }
        return binary2ASC(intArr2Str(data));
    }

    /**
     * 主密钥需要经过两次分散获得IC卡中的子密钥
     * 空圈的通讯类过程密钥使用这种密钥分散机制
     *
     * @param issuerFlag 发卡方标识符
     * @param appNo      应用序列号即卡号
     * @param mpk        主密钥
     * @return
     */
    public static String getDPK(String issuerFlag, String appNo, String mpk) {
        // 第一次分散
        StringBuffer issuerMPK = new StringBuffer();
        // 获取Issuer MPK左半边
        issuerMPK.append(divData(issuerFlag, mpk, 0));
        // 获取Issuer MPK右半边
        issuerMPK.append(divData(reverse(issuerFlag), mpk, 0));
        // 第二次分散
        StringBuffer dpk = new StringBuffer();
        // 获取DPK左半边
        dpk.append(divData(appNo, issuerMPK.toString(), 0));
        // 获取DPK右半边
        dpk.append(divData(reverse(appNo), issuerMPK.toString(), 0));
        return dpk.toString();
    }

    /**
     * @param TMK  终端主密钥
     * @param ZAK  工作密钥
     * @param data 参与MAC运算的数据
     * @return 计算后的MAC值(16进制表示)
     */
    public static String doMacANSI_x99(String TMK, String ZAK, String data) {
        if (TMK == null || TMK.length() != 32) {
            throw new RuntimeException("TMK's length must be 32");
        }
        if (ZAK == null || ZAK.length() != 32) {
            throw new RuntimeException("ZAK's length must be 32");
        }
        String zak_plain = DesThreeBoc.decryptDES(TMK, ZAK);

        String zak_plain1 = zak_plain.substring(0, 16);


        String zak_plain2 = zak_plain.substring(16);


        String data_step1 = ANSI_X9_9_MAC(zak_plain1, "0000000000000000", data, HEX);


        String data_step2 = DES_1(data_step1, zak_plain2, 1);


        String data_step3 = DES_1(data_step2, zak_plain1, 0);


        return data_step3;
    }

    public static String doMacANSI_x99_asc(String TMK, String ZAK, String data_asc) {
        return doMacANSI_x99_asc(TMK, ZAK, data_asc.getBytes());
    }

    /**
     * @param TMK      终端主密钥
     * @param ZAK      工作密钥
     * @param data_asc 参与MAC运算的数据
     * @return 计算后的MAC值(16进制表示)
     */
    public static String doMacANSI_x99_asc(String TMK, String ZAK, byte[] data_asc) {
        if (TMK == null || TMK.length() != 32) {
            throw new RuntimeException("TMK's length must be 32,current reqSrcValue:" + TMK);
        }
        if (ZAK == null || ZAK.length() != 32) {
            throw new RuntimeException("ZAK's length must be 32,current reqSrcValue:" + ZAK);
        }
        String data_dex = DesThreeBoc.byte2hex(data_asc);
//        String src_data_asc = new String(src_data_asc_byte);

        String zak_plain = DesThreeBoc.decryptDES(TMK, ZAK);
        String zak_plain1 = zak_plain.substring(0, 16);


        String zak_plain2 = zak_plain.substring(16);


        String data_step1 = ANSI_X9_9_MAC(zak_plain1, "0000000000000000", data_dex, HEX);


        String data_step2 = DES_1(data_step1, zak_plain2, 1);


        String data_step3 = DES_1(data_step2, zak_plain1, 0);


        return data_step3;
    }

    /**
     * 主密钥需要经过一次分散获得的子密钥
     * 空圈的交易类过程密钥使用这种密钥分散机制
     *
     * @return
     */
    public static String getDPK4Once(String data, String mpk) {
        // 第一次分散
        StringBuffer dpk = new StringBuffer();
        // 获取DPK左半边
        dpk.append(divData(data, mpk, 0));
        // 获取DPK右半边
        dpk.append(divData(reverse(data), mpk.toString(), 0));
        return dpk.toString();
    }

    public static void main(String[] args) throws Exception {
        String data = "343039363636353532383635393438323130303030303030303030313331303130303030";
        byte[] str1 = DesThreeBoc.hex2byte(data.getBytes());
        System.out.println("str = " + new String(str1));

        String str = doMacANSI_x99("33333333333333333333333333333333"
                , "443C35CCA16D2D249F784498CD08F662", data);
        System.out.println("str = " + str);

        String data_asc = "4096665528659482" +
                "100000" +
                "000001" +
                "31010000";
        String sign_data = "409666552865948210000000000131010000";
        System.out.println("equals : " + (data_asc.equals(sign_data)));
        String str_asc = doMacANSI_x99_asc("33333333333333333333333333333333"
                , "443C35CCA16D2D249F784498CD08F662", data_asc);
        System.out.println("str_asc = " + str_asc);

//        String requestData = "4096665528659482000000000000001000100011015631010000";
//              String str = doMacANSI_x99("48864EA979EE933748864EA979EE9337"
//                      , "F4B7521A1AECCA4624E59E6DCEAED0BD",requestData);
//              System.out.println("str = " + str);

//        String macValue = MacUtils.doMacANSI_x99_asc("48864EA979EE933748864EA979EE9337"
//                , "9DD4910AE2387842F52AC32BE372D91A", "4096665528659482000000000000001000100011015631010000");
//        System.out.println("macValue = " + macValue);
//
//        String macValueHex = MacUtils.doMacANSI_x99("48864EA979EE933748864EA979EE9337"
//                ,"9DD4910AE2387842F52AC32BE372D91A"
//                ,"34303936363635353238363539343832303030303030303030303030303031303030313030303131303135363331303130303030");
//        System.out.println("macValueHex = " + macValueHex);
    }
}
